implementing password aging on my 11.31 trusted servers

Hello-I am going to be implementing password aging on my 11.31 trusted servers. There are several system and application accounts that I do not want to have their passwords expire. I am planning to run the following command against the accounts whose passwords I do not want to expire:

/usr/lbin/modprpw -m mintm=0,exptm=0,expwarn=0,lftm=0,llog=0

Do I need to run this for the root account to keep my root password from expiring?